Consider the following list of numbers: • 14; • 16; • 16; • 22; • 25; • 38; • 38; • 38; • 38; • 2000 In this list, the number 25 is most nearly 

In a Pew Research Center Poll, 73% of the 3011 adults surveyed said that they use the internet. The set of 3011 adults surveyed is called a

List the conjugate acid or conjugate base for the acid HCOOH

A sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g. Record each step needed to calculate the number of moles of all elements present in the sample.

When you conducted the Charle’s Law experiment, which variables were held constant?  

What are the conjugate acids and conjugate bases of ammonia (NH3) ?

During the Lab, what did you see when you held the grating several inches from your face, and looked at it at an angle? What details did you see at the grating surface?

How does the shape, thickness, and resolution of the spectral lines change as you widen the light inlet slit? 

This questions refers to Exercise 1 in your Acid – Base Lab.  Write the chemical equation of mixing nitric acid HNO3 with water. 

The wavelength (λ) and frequency (ν) of light are related through the equation: c=λ×ν where:c= speed of light (3.00×108 m⋅s−1)λ=wavelength (m)ν=frequency (s−1)c=λ×ν where:c= speed of light (3.00×108 m⋅s−1)λ=wavelength (m)ν=frequency (s−1)   Using the following emission spectrum: Calculate the frequency for each of the Indigo (470 nm) emission lines (1 nm = 1 x 10-9 m):